3M Speedglas 9002NC - Page 47

45
UV
(ultraviolet) radiation
– always blocked
VISIBLE LIGHT
IR
(infrared) radiation
– always blocked
20
18
16
14
12
10
8
6
4
2
0
Transmittance (%)
Light transmission curve
Speedglas welding filters keep the welder
protected from harmful UV and IR radiation.
This protection remains always,in on, off,
dark and light state.
G:1